Question

我不知道如何在我的UICollectionView中调整我的单元格时，当用户正在写入时UITextView变得更大（正如我在下面的代码中所做的那样）：

-(BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text{
    if([text isEqualToString:@"\n"]){
        float widthLabel = 0.0f;

        UIInterfaceOrientation interfaceOrientation = [[UIApplication sharedApplication] statusBarOrientation];
        if(UIInterfaceOrientationIsPortrait(interfaceOrientation)){
            widthLabel = (screenWidth-6)-4-200;
        }else if(UIInterfaceOrientationIsLandscape(interfaceOrientation)){
            widthLabel = (screenHeight-24)-4-200;
        }
        textView.frame = CGRectMake(2, 0, widthLabel, textView.frame.size.height+10);

    }
    if(text.length == 0 && [[textView.text substringWithRange:range] isEqualToString:@"\n"]){
        float widthLabel = 0.0f;

        UIInterfaceOrientation interfaceOrientation = [[UIApplication sharedApplication] statusBarOrientation];
        if(UIInterfaceOrientationIsPortrait(interfaceOrientation)){
            widthLabel = (screenWidth-6)-4-200;
        }else if(UIInterfaceOrientationIsLandscape(interfaceOrientation)){
            widthLabel = (screenHeight-24)-4-200;
        }
        textView.frame = CGRectMake(2, 0, widthLabel, textView.frame.size.height-10);

    }
    return YES;
}

我想使包含此UITextView的item单元格相对于UITextView变得更大/更小。我无法通过在单元格中使用新高度来更改大小并使用reloadData，因为它会使键盘消失而用户无法再写入。

Answer 1

我不确定，但我认为您可以尝试使布局无效并强制重绘uicollectionview布局。

看看这个：Resize UICollectionView cells after their data has been set

uiCollectionViewCell调整单元格大小

1 个答案: